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Proceedings Paper

Far-infrared detector development for space-based Earth observation
Author(s): H. H. Hogue; M. G. Mlynczak; M. N. Abedin; S. A. Masterjohn; J. E. Huffman
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Paper Abstract

DRS Sensors & Targeting Systems with silicon materials partner Lawrence Semiconductor Research Laboratory and development partner NASA Langley Research Center Earth Science Directorate are developing improved far-infrared detectors for Earth energy balance observations from orbit. Our team has succeeded in demonstrating the feasibility of extending the wavelength range of conventional arsenic-doped-silicon Blocked Impurity Band (BIB) detectors (cut-off ~28 μm) into the far infrared. The new far-IR member of the BIB detector family operates at temperatures accessible to existing space-qualified cryocoolers, while retaining the very high values of sensitivity, stability, linearity, and bandwidth typical of the broader class of silicon BIB detectors. The new detector should merit serious consideration for the Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission defined by the recent National Research Council's Decadal Survey for Earth Science. Proposed further development of this detector technology includes wavelength extension to a goal of at least 100 μm, improvements in detector design, and implementation of light-trapping packaging. These are developments that will enable increased radiometric accuracy, reduced spatial smearing, and simpler calibration approaches for CLARREO.

Paper Details

Date Published: 3 September 2008
PDF: 8 pages
Proc. SPIE 7082, Infrared Spaceborne Remote Sensing and Instrumentation XVI, 70820E (3 September 2008); doi: 10.1117/12.797078
Show Author Affiliations
H. H. Hogue, DRS Sensors and Targeting Systems, Inc. (United States)
M. G. Mlynczak, NASA Langley Research Ctr. (United States)
M. N. Abedin, NASA Langley Research Ctr. (United States)
S. A. Masterjohn, DRS Sensors and Targeting Systems, Inc. (United States)
J. E. Huffman, Lawrence Semiconductor Research Lab. (United States)

Published in SPIE Proceedings Vol. 7082:
Infrared Spaceborne Remote Sensing and Instrumentation XVI
Marija Strojnik, Editor(s)

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